Trolley guard



Dec. 13, 1927.

H. P. CHANDLER TROLLEY GUARD Filed Oct. 14, 1925 /70mer avd/e r (Yuma,

Patented Dec. 13, 1927.

HOMER r. CHANDLER, or MANSFIELD, onto, assrenon are THE OHIO BRASS M:

PATENT OFFICE.

PANY, OE MANSFIELD, OHIO, A CORPORATION OF NEW JERSEY.

TROLLEY GUARD.

Application filed October 14, 1925. Serial No. 62,381

My' -invention relatesto guards for use in IHIDGSTO" give protectlonagainst contact with the trolley wire or other charged con-' due-tor.While any invention is primarily designed for use in mines it isapplicable to 7 other conditions where itis desired-to protect-chargedconductors from being contacted with;

The ob-ject of my invention is to provide a :device ofmthe abovecharacter; which is simple, inexpensive and easy to be appliedtorhangers-uised -in:supporting the trolley wire from the roofof themine or to-other supports, and 'my' invention resides I in the new andnovel construction, combination and relation-of the various partshereinafter fully described and disclosed in the drawing accompanyingthis; specification.

In the drawing:

. Figwl is an -end view of my invention shown as installed :upona hangerwhich in turn is secured to the roof of a mine.

Fig. 2 is a bottom plan view of the hanger, guards and guard supportsshownin Fig. 1. I

Fig. 3 is a side view of one of the guard supports used in securing theside boards to the hanger. V

Fig. 4 is a sectional view of Fig. 3 on the line 44. v

In the preferred form of my invention I employ a hanger 1 which hasmeans for securing it to a support and a threaded stud 2 to which atrolley clamp may be secured for supporting the trolley wire 3 theretoin insulated relation to the mine roof or ground. The hanger 1 is not ofany par ticular design as there are many hangers on the market atthepresent day used for the purpose of supporting a trolley wire in1nsulated relation to the ground and which can be used for the purpose Idescribe.

To the lower edge of the hanger 1 are secured two bracket members t,preferably of metal, and which are duplicates and are provided with agroove 5 to fit the lower edge of the hanger 1 and enclose acons1derable portion of the lower circumference of the hanger. Eachbracket is provided with oppositely disposed lugs 6 and 7' and the lug 6is shown with a square hole 8 and the lug 7 with a round hole 9. Whenthe two bracket castings are positioned on the hanger 1 the hole orpassage 8 of one bracket registers with the hole or passage 9 of theother bracket. and positioned in each pair of registered holes is a bolt10 andupon eachboltis secured a nut 11 which when drawn .into positionwill holdand maintain the brackets in position upon the hanger.

The usual'practice in supporting a trolley wire is to place the hanger 1at quite frequent intervals, namely; from five to fifteen feet,depending'upon the. conditions. This permits, the use of side boardsorguard boards 12 which I mount upon the bolts 10 and secure thereto bymeans of thenut and washer 13 and by means of which the guard or sideboards are drawn into engagement with the nuts 11. Where the endsof theboardsabut such adjacent ends may be secured; together in any well knownwayaswill be obviousto one skilled-1n the art, as by means of anoverlapping strip of metal 115 secured to both boards adjacent theirends. as shown; in Fig. 2. i In order to further brace the guard boards12 I provide each bracket with a projecting boss 14: which is engaged bythe guard board 12 when thesame is properly positioned.

I findthat the construction of guard board and bracket which I employpermits the apvented from engaging with the trolley wire 3 or thechances of engagement are very much reduced By making the hole 8 squareand using what is known as a carriage bolt in securing the parts inposition the bolt is prevented from rotating for the reason that thecarriage bolt is provided with a square bolt adjacent the head whichcorresponds with the square hole 8.

Modifications will suggest themselves to those skilled in the art, but Ido not wish to be limited other than by my. claims.

I claim:

1. A guard for a conductor comprising a hanger, a pair of bracketsrotatably adjustahle relative to each other and to the hanger andsecured to the lower edge of the hanger the brackets having circularlyformed and grooved faces to engage the hanger, means to securethebrackets in adjusted position on the hanger and spaced guard boardssecured to the brackets.

2. A guard for a conductor comprising a hanger a pair of bracketsadjustable relative to each other and to the hanger and secured to thelower edge of the hanger, means to secure the brackets in adjustedposition on the hangerspaced guard hoards secured to the brackets by thesaid securing means and means on the brackets to engage the adjacentguard board to brace the same.

3. .s\. guard for a conductor comprising a hang r to support theconductor. parallel and spaced guard boards parallel to the conductorand positioned in a vertical plane, means secured to the hanger and theguard boards to support the boards from the hangen the said meanscomprising a pair of spaced members secured to the hanger a pair of lugsprojecting from each member at separated points and each lug having apassage, one of the lugs on each member ha ving their passages aligneda, bolt passing through each of the two pair of aligned passages andeach bolt passing through one of the boards transversely thereto, meanson each bolt to engage one lug on one member and other means on eachbolt to engage the lug alined therewith to draw the lugs toward eachother and clam the members to thchanger, means on each 'olt to engagethe board thereon and hold it in position and means on each member toengage one of the boards to lu'aee the same.

l. A guard fora conductor comprising a hanger to support a trolley Wire,a pair of f-lf'HWQtl brackets adapted to be secured to a support androtatably adjustable relative to each other and to the hanger in a planeparallel to the plane of the trolley wire, means to secure the bracketsin adjusted position on the support, guard hoards mounted upon the saidmeans and means to secure the boardsin position on the said securingmeans and permit removal of the boards without disturbing the relationbetween the brackets and. sup port. 1

A, guard for a conductor comprisinga pair of spaced brackets adapted tobe secured to a sup iort, a pair of spaced guard boards, means to securethe brackets to the support and means to secure the boards to the saidsecuring means Without disturbing the relation ot the brackets to thesupportwandin immovable relation to the support.

In testimony whereof I aflix my signature.

HOMER P. CHANDLER.

